Camping in converted van

We actually sent an e-mail tp the organizers about this and haven't heard back, so I thought I'd post here. We have a van that's been converted to an RV but is no bigger than an SUV. We tried to get tickets for a camping spot with hook-up but missed them, We're ok to camp without the hook-up as long as they won't object to us sleeping in our camping veghicle. Anyone think this could be an issue for the organizers? Thanks in advance for your feedback!